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"We view Alex's decision to void as procedural," his agent, Tim Younger, told The Plain Dealer. "It was built into his contract to afford him maximum flexibility. For the first time in his career, he will be experiencing true free agency. Although we anticipate interest from multiple teams, he was very impressed with Hue Jackson and returning to the Browns certainly remains on the table."

The Plain Dealer's Mary Kay Cabot reported that Mack "likes Browns coach Hue Jackson, he loves his fellow offensive linemen and his girlfriend is from here." What Mack can't be a fan of, though, is playing with countless quarterbacks on a team that has gone 33-79 since he arrived as a first-round draft pick in 2009.

All that aside, Mack is set to become the highest-paid center in the NFL. Unless the Browns are willing to outpay the competition, he's is a strong bet to land elsewhere in 2016.